replace conditional with polymorphism javascript

Replace Conditional Statements (IF/ELSE or SWITCH) With Polymorphism Published Feb 07, 2019 My Objective here is to let you guys know that if we have lot of conditional statements in our code, how we can remove them by using OOPS concepts.So to explain that I have taken a very simple problem statement. I'm not familiar with Swift, but you can adapt it easily. The polymorphic TripSatisfaction object is mostly abstracting out null checks that existed previously the rest of this refactor is in support of that. In our example, calculateRate () is only responsible for figuring out how much to charge for a project - so we are good there. The prescription: a healthy replaced method in this second pass went through three stages: After removing all six conditionals, the @strict attribute and strict? This principle suggests to use polymorphism to replace the conditional. @keelerjr12, it moves the responsibility for determining if a confirmation is needed for the delete into the. Polymorphism allows us to easily add or remove child classes without modifying the parent. Every process is given a certain time to run cyclically. Benefits The forementioned compliance with the Open-Closed Principle Gets rid of duplicate code, as you can get rid of many conditionals and/or switch statements I also made frequent commits Replace Conditionals With Polymorphism In OOP world polymorphism is a very simplistic translation means same name, different logic. Our application takes in an enormous quantity of traffic information for major metropolitan areas, massages that data into a common format, and uses that information to determine things like road health, driver satisfaction, etc as well as trying to do things like identify roads in need of maintenance based on overuse. Our goal is to end up with a single line in the shipping_cost method that will automatically give us the correct cost for the country we pass in. Most importantly, the code could be reused. to replace the conditionals. Understanding this leads to solving your dilemma: you have one class (or less classes than you might imagine), and more logic in the same object. The polymorphic TripSatisfaction object is mostly abstracting out null checks that existed previously the rest of this refactor is in support of that. OK, enough overview lets dive on into the code. This is NOT about coding aesthetics, this is all about clarity. I had a object-oriented design challenge over the weekend, and tried to replace a block of switch-case statement with a set of classes that implement an interface. Its purposefully written to elicit groans, and those groans might come in many forms: Before creating too long a list of complaints, lets see the calculations for overall trip satisfaction: Whew. I defined that as a Polymorphism. Lisp macros also allow runtime code generation without parsing a string containing program code.. wanted to move the other half of each branch into another new class, so I needed For more reading on patterns, I would recommend checking out Creating A Round Robin Assignment, which walks through how to use the Visitor pattern, as well as Mocking Apex History Records, which shows off the DAO pattern. I recently discovered the validates! That'd be interface in Java/C#). Other implementations might dynamically determine if they want to use confirmation. all and required no test changes. shoulda-matchers is open Lets move on to actually implementing a concrete version of TripSatisfaction: With only a few keystrokes, weve already accomplished quite a bit. if the driver encounters a traffic light but they dont have to stop (green), their trip is considered (relatively) unaffected. The C# code I came up with was something like. This is, in my opinion, the single most satisfying refactoring, because it showcases how maintanability improves by fixing an improper abstraction instead of letting it fester. Do non-Segwit nodes reject Segwit transactions with invalid signature? Replace Conditional with Polymorphism Instead of having a switch statement to that does the same thing to different kinds of data, we can create subclasses for each and then have different methods that are tailored to the type of object that it's called on. Part 2: Replace Conditionals with Polymorphism Via Protocols Use Elixir protocols to bring polymorphism to your data structures This is the second in a series of posts we are doing on refactoring patterns in Elixir, a series that stemmed from working through Martin Fowler's book Refactoring. call, I went to write a failing test: These tests work fine for the usual validates_inclusion_of approach, but there Help us identify new roles for community members. That change caused completing my higher-level refactoring. Such a conditional check, if not designed correctly, is likely to be . Were also stumbling into the Flyweight Pattern area with our factory methods for TripStreet and TripSatisfaction (especially with some of the returns being singletons), but I wont spend time on that subject. allow_value doesnt expect exceptions. a Ruby on Rails application that will be fun to work on for years to come. (Another approach would be to push the confirmation into the deletion, but that would surprise consuming clients who expect a deletion operation to succeed.). Something can be done or not a fit? Doing so allows us to get rid of complicated tests involving many dependent objects, and replace them with tests that are more truly unit-based by removing SOQL and DML requirements (where possible). I think its useful to highlight how, at a certain point, its "just objects all the way down." Charles Asks: Replace conditional with polymorphism - nice in theory but not practical "Replace conditional with polymorphism" is elegant only when type of object you're doing switch/if statement for is already selected for you. Simple descriptions and full source code examples in Java, C++, C#, PHP and Delphi. Replace Conditional Logic with Strategy Pattern. That'd be interface in Java/C#). It doesnt require a class of its own, at this current juncture; what it accomplishes, however, is the proper separation of concerns between how a trips satisfaction is measured versus how it is created. class EuropeanSwallow { get plumage() { return "average"; } class AfricanSwallow { get plumage() { return (this.numberOfCoconuts > 2) ? Doing it this way is respecting Liskov's Substitution Principle, which says you should be able to pass either Cat or Dog (or any other protocols you might eventually have under Animal potentially), and have it work indifferently. Arent you just moving the same conditional from where it was originally?? Next time youre unhappy with your code, resist the temptation to rip it out and Answer (1 of 2): Rather than write an example, here's a good one that someone else wrote: https://refactoring.guru/replace-conditional-with-polymorphism The . commit, There's Interactor class that handles logic behind scenes. Since you want to use a confirming alert, you could make that an explicit capability of the interface. The conditional approach you're showing we would call "ask". While there are a few inner classes that somewhat represent a few of the metrics Ive just mentioned, they are used inconsistently, and since they are inner classes, none of them are first-class citizens within the codebase. process of cleaning up this mess. A screencast of one of Martin Fowler's refactoring patterns from the series called Simplifying Conditional Expressions. Have you heard the phrase leaky abstraction before? A new condition should not change the main algorithm. Our first pattern is a spin on one of the more influential refactoring techniques Martin Fowler brings up in his book: "Replace Conditional with Polymorphism". I started with one logical branch: finding errors from the errors This contrasts with the alternative we call "tell". if the driver encounters a traffic light and the warning light (yellow) is on, their trip begins to be affected negatively. Its not meant to be perfect; its not meant to present the refactored code as finished by any means. If a subject matter expert with no coding experience whatsoever can look at the name of a class and say: hey, I know what that is! youre doing it right. Thats all for today! Before pushing this, I rebased and squashed most of my commits up your user experience, 2022 Ready to optimize your JavaScript with Rust? many small steps (refactoring) is faster and less error-prone than trying to How could my characters be tricked into thinking they are on Mars? This kind of behaviour should not be linked to the model. quality, speed up delivery times, improve developer happiness, and level In your excel workbook, click on File, then Options. If youre familiar with the Gang Of Four patterns, youll also note that both refactorings shown are examples of the Command pattern. A Direction is an object that. Replace Conditional With Polymorphism . planned on providing: This fails because message_finder isnt defined. For instance, instead of writing the following: Asking for help, clarification, or responding to other answers. Can a prospective pilot be negated their certification because of too big/small hands? When you have constructors set up which allow you to arrive at a number, or an object, as the result of some one-time calculations, I highly recommend keeping dependencies declared as final so that they are only set once and you have that guarantee of immutability: Et voila! Thanks for contributing an answer to Software Engineering Stack Exchange! documentation: This method was exactly what I had been looking for, so I set to using it with Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. This site uses Just the Docs, a documentation theme for Jekyll. Method. I changed AllowValueMatcher to start out with a ValidationMessageFinder: I changed AllowValueMatcher#strict to replace the finder factory: And I changed AllowValueMatcher#message_finder to use the factory: Then I repeated this process of extracting a class and moving extracted methods You want to treat all protocols the same throughout your program except in the implementing class itself. With that excerpt out of the way, we can move on to our refactoring exercise, and discuss the rationale behind deciding to refactor this piece of code. Using tell, you push more of the work into the polymorphic implementations, so that the consuming client code is simpler, without conditionals, and common regardless of the possible implementations. Again this particular area of the refactor might be overkill. Compound modification. It should be noted that the code isnt perfect and its not trying to be. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. In the next example, we will make two functions with the same name 'area'. // now that the street-level counts have been tallied, // for more on this, I recommend reading about the flyweight pattern, // this could be consolidated with the first if statement, // but trying to keep nested conditionals to a minimum here, // to help with rendering this page on mobile, // the only one that actually needs to perform additional logic on the, // one of several ways you can avoid the 1.1 repetition, // another would be to have YellowStreetTrip, // so that we could call super.getScore() here, // SPLIT_TEST_YELLOW_SINGLETON (since YellowStreetTrip, // requires calling super(street) in the constructor, Null Object pattern, which I briefly mentioned in the Object Oriented Basics post, may recall me having explicitly quoting before in Extendable APIs. Now we want to present a confirmation alert to the user when he wants to delete a cat. When I looked into it, it did put a smile on my face despite its simplicity. For more shenanigans, check out She & Jim! The last change was to move the original Theres also some feature-flagging being accomplished through the use of Custom Metadata; in this case, TripEnvironment__mdt. There's Interactor class that handles logic behind scenes.. Now we want to present a confirmation alert to the user when he wants to delete a cat. Object orientation. Replace Conditional With Polymorphism Closing Thoughts This is a really simple (and endlessly contrived) example. Why does the USA not have a constitutional court? Privacy Policy, # Extract positive branch to a method and move it to `ExceptionMessageFinder`, One branch at a time, one method at a time. I hate over engineering (see this principle if you are practicing Agile) and always want to start with simple solution. Replace Conditional with Polymorphism switch statement OO Search for jobs related to Replace conditional with polymorphism javascript or hire on the world's largest freelancing marketplace with 21m+ jobs. Learn on the go with our new app. The last day of refactoring comes from Fowlers refactoring catalog and can be found here.. So, you might have a boolean method that optionally checks with the user and returns the confirmation boolean. Tabularray table when is wraped by a tcolorbox spreads inside right margin overrides page borders. First programming lesson: Control structures. Consider two classes Dog and Cat both conforming to Animal protocol (in terms of Swift programming language. At that point, you'd only need to do (My apologies if syntax isn't correct. thoughtbot, inc. The application Ill be referring to over the course of this article was state of the art! Class B is created by extending class A. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, It's a little unclear in the statement of the question, but, So you suggest to let model decide whether to present a confirmation popup or not? Typically polymorphism allows to remove the conditional or to put it at the instantiation time of the new object. now had six methods that forked their behavior based on whether or not strict? /// Move a position a specified number of steps in this direction. I think Cat and Dog are more likely to be POJO. TypeError: unsupported operand type(s) for *: 'IntVar' and 'float'. /// position, /// number of steps. Then extract the relevant behaviors from the original class to these subclasses. However, youll note that the first step we identified was how these objects are constructed, and this is something that has been called out explicitly in Object Oriented textbooks since at least Clean Code came out (as you may recall me having explicitly quoting before in Extendable APIs): The solution to this problem is to bury the switch statement in the basement of an ABSTRACT FACTORY, and never let anyone see it. At the moment, code associated with the drivers trip satisfaction are buried in a fairly large (1k+ LOC) class: I wont get started too much on things that should jump off the page about this example snippet. This had a number of downsides: I had a fever, and the only cure was more objects. A better solution is to use the tried and true technique called "Replace conditional with polymorphism". The second polymorphic refactor shown, with TripStreet, helps but theres always a fine balance to be struck in a codebase when it comes to the proliferation of objects, and perhaps TripStreet is taking the concept too far. If you want to learn more about it, you can read the amazing 99 bottles of OOP book by Sandi Metz. Enter your email See this example stackoverflow.com/questions/126409/ - ichantz Jan 22, 2018 at 9:31 Add a comment 4 Answers Sorted by: 36 Then replace the. The only thing missing is pulling the conditional logic that affects a trips overallSatisfaction such that the corresponding TrafficColor map entries are populated, as well. Trip has a related object, StreetTraveled__c, which contains one record related to trip per road used on any particular trip. I gusted out a quick validates! Well, remember this section of the snippet above? Prior to the advent of multiple windows, command-line systems might . Weve also shown how you can continue down the polymorphic path, increasing the specificity of your tests and decreasing coupling between objects (particularly at the database level). Polymorphism in C++ Polymorphism means having multiple forms of one thing. In them, create a shared method and move code from the corresponding branch of the conditional to it. The parameters and the body The parameters required by this method and the body of the method are the same as for the first constructor discussed above. There are four cardinal directions, East, South, West and North. What weve achieved is, again, partly a Domain Driven Design refactoring to promote TripSatisfaction to a first class citizen within the codebase. Replace the control flow code with polymorphism. Here's a short example. were a mistake. Ok, yes, that is a different question, requiring a different answer. It's an expression of the Tell, Don't Ask principle, where instead of asking. Lets dive in. It's very powerful. We will also see both of these in action using simple code examples. Since If you look at the switch-case statement above, it is anti-OO. No application is complete without lots of toggleable feature flags. This ancient refactoring technique is known as Replace Conditional with Polymorphism, and it can make your code cleaner, if you will let it in your heart.But I'll call it Protocol Oriented . In Object Oriented Programming, however, theres another (tangential) refactoring tool available to remove the hurdle of pervasive null checks: the Null Object pattern, which I briefly mentioned in the Object Oriented Basics post. We can cache the created TripSatisfaction objects to pass around as needed to other downstream callers; we can also create unit tests that provoke the extremely granular score / color conditions within our fully encapsulated class without needing to perform complicated setup. Duplicated code. All drives are recorded anonymously, so Trip has no concept of a specific driver, but we do store things like a trips duration. collection. coding session. hard-coded reference to the first implementation I planned to write: Now I had a failure because that class was undefined. The logic depends on, Yeah, sorry about the unclear question, I've made few edits. Anything implementing Dog would return false and anything implementing Cat would return true. It obviously smells. one at a time, this time for the strict branch of each conditional. In the business domain, a Cat shouldnt know about UI related code. I finished it up with the inevitable fix for Ruby 1.8.7 and put together a pull As an example, I have a web application which reads a query. Note: This refactor that was done is called Replace conditional with Polymorphism (pretty easy to remember the name huh?) To learn more, see our tips on writing great answers. together. during this process so that I could easily step backwards if any of my steps Crucially, we now only need a few variables between StreetTraveled__c and the TripEnv__mdt record to be truly setup in order to work through testing that we get the right TrafficColor and score back from whichever version of TripStreet is returned by the create() static factory method. If the so-called satisfaction object is being used to calculate trip satisfaction its not really living up to its name. If were starting from the point of all tests passing, we have carte blanche to make updates as we see fit. The code has been maintained, but not touched much since the initial release, and there are the code equivalents of earmarks in a well-read book everywhere: this thing was rushed out the door. Refactoring, by Martin Fowlerhttp://amzn.to/2oI9ikx The 1st chapter can be read on Google Bookshttps://bo. Round Robin Algorithm. In many cases, you can not get rid of all the conditionals as somewhere you will have to make a decision to choose the correct implementation of inheritance hierarchy. Then, when creating a Cat instance, you supply it with TellSceneToShowConfirmationAlert, which will need to return true if OK to delete: I would advice to go for a Visitor pattern. Search for jobs related to Replace conditional with polymorphism javascript or hire on the world's largest freelancing marketplace with 21m+ jobs. Over that time period, I've remained staunchly opposed to advertising on the site, but I've, // code smell - magic strings being used as map keys, // also a code smell, but for a different reason, // some arbitrary requirement that's been added in after the fact, // which complicates things, as new requirements always do, // some negligible amount that would only add up on an extremely long trip, // more on this constructor, and the need for it, // change from abstract to virtual; we are now working on the implementation. Polymorphism gives you many advantages. you might declare, as you look at the beginnings of what will end up being several conditionals. At this point, I had extracted a new class, but all six conditionals remained. return directions[Array.IndexOf(directions, direction) + 1]; // 1) faces a direction (value of DirectionEnum), // and can figure out a new position when moving a position forward in its direction. Replace Conditional with Polymorphism (255) You have case statements or ifs The cases depend on types Move each leg of the conditional to an overriding method in a subclass. thoughtbot, inc. PSE Advent Calendar 2022 (Day 11): The other side of Christmas. write it fresh, even if youre only replacing a single class or a few methods. feedback from other developers. I did a small implementation in Java. The prior version of TripSatisfaction has been discarded entirely as we promote this class (and the enum!) Replacing a switch statement directly with polymorphism would work, if the conditional was based on the Type of the object, which you simply overcome by using the Type of the interface. This change resulted in my This word consists of two greek words: polys which means "many" and morph which means form or shape. Avoid using ChatGPT or other AI-powered solutions to generate answers to how to follow python polymorphism standards with math functions, Applying Replace Conditional with Composition in functional programming. second The best answers are voted up and rise to the top, Not the answer you're looking for? With that being said, well return to the original refactoring to see how we ended up at the original call site for this code! The Push programming language is a genetic programming system that is explicitly designed for creating self-modifying programs. It's free to sign up and bid on jobs. Replace-Conditional-with-Polymorphism To talk about refactoring of code If we have a class full of Male & female students ,they went to pee we want to present that in a code. Then let us re-look at the requirement, it looks like the Direction is not just value object or enum, instead, it has behaviors. If the class is intended to be used across multiple UI layers, the problem grows. Software Engineering Stack Exchange is a question and answer site for professionals, academics, and students working within the systems development life cycle. It might surprise you to learn that the first thing that we do is start making changes to the production-level code, but this is because the tests are already green. The term "fixed time" is also used for the concept of "time quantum," "time slot," and "time stamp." Once a process has run for a predetermined amount of time, it is preempted and another . C++ (pronounced "C plus plus") is a high-level general-purpose programming language created by Danish computer scientist Bjarne Stroustrup as an extension of the C programming language, or "C with Classes ". to its own file. first {. For example: Coupling. was set. Written by James Simone, Lead Engineer @ Salesforce, climber, and sourdough bread baker. I added my first test: The failures from this test guided me to define the class and implement the Lets begin! Keywords: mutation operators that introduce, delete, or replace Java keywords such as this, static, transient, or synchronized. I do not know Kotlin, so I'll express things in C#. When you have only single method that varies behaviour with condition or there is not explicit is-a relationship in hierarchy you might create, then consider composition over inheritance. While this pattern does not, perhaps, fulfill what we might traditionally think of as polymorphism, it is a great option for refactoring complex conditionals in function bodies. How does the Chameleon's Arcane/Divine focus interact with magic item crafting? In our case, the abstract factory might currently live as a static method within TripSatisfaction. The full change I pushed to solve this problem is fairly large: The problem and results are fairly easy to understand, but lets dig into the The math is only done in one place. We have a screen displaying a mixed list of dogs and cats. Feel free to suggest a better one! I wanted to move the other half of each branch into another new class, so I needed a way to get the new class into the mix. my new test to pass. I spend a lot of time talking about Test Driven Development which is to say, making use of the red, green, refactor mantra while making code changes. I The TripSatisfaction inner class is the perfect example of a leaky abstraction, because it only partially wraps the StreetTraveled__c child records for Trip__c; you can tell this is the case for two reasons: If you recall, trip satisfaction is one of the primary metrics our application measures, yet the calculations necessary to update a trips satisfaction score are buried within a monolithic class. This principle has a slight variation where Composition is used instead of Polymorphism and is known as Replace Conditional With State/Strategy Pattern. didnt change the API at Returning to our factory method (still within TripSatisfaction): The calling code is now completely clean. How is that object-oriented?? allow_description method from AllowValuesMatcher to my new class (Move Now we will see how we implement lazy loading. The design of a robot and thoughtbot are registered trademarks of At this point, I made my request to get Alright, this is not hard to implement, and code looks similar to, The object-oriented design has a lot of designs and principles, however, there are few essential and fundamental ones, such as. In the above code, we have seen how we replace condition statement with Dictionary. Null checks, and null pointer exceptions, are the bane of our existence as programmers. public static class SimpleFactory. is it possible for a trip to have no streets traveled? The method with conditionals would look like this: How can this code be refactored? I understand with OOP that applying the Replace Conditional with Polymorphism pattern makes this easy as you can simply call a single method and it will already execute the correct code that had previously been in a switch case or a conditional branch in the "less clean" version of the code, based on which subclass you're working with. This exercise will also highlight a curious junction between Test Driven Development (TDD) and Domain Driven Design (DDD) which is to say that if the functionality that youre working to refactor exists as one of the central concepts for the application youre working on, it deserves to be represented properly as an object. #fistpump Step 1 is to make sure the switch statement is in a method of its own. Identifying those two separate needs also leads us to a third that well need to consider, in addition to these two: Will help us to arrive at the ideal architecture for this object. Nulls. if the driver encounters a stop sign - this ends up getting lumped into the warning category for yellow lights, magic strings (red, yellow, green) instead of enums, map structure being returned with the magic strings, the decision to use (implicitly) a sub-query to return the, a map structure is being used to categorize the data being returned, we need to centralize the logic for how a, getting the overall satisfaction of a trip, accessing the portion of a trip satisfaction score related to traffic light colors, There are more methods now and more lines as a result of the closures but each method has a clear purpose. For now, though, well run with TripStreet: I know what youre thinking thats a lot of inner classes! A class implementing one more interface has two types and it's polymorphic: the data type of the class itself and the data type of the interface. dose of Replace Conditional with At this point, all tests for AllowValueMatcher also @GrgoryElhaimer Please note that it isn't determining behavior. A business entity vs a ViewModel class. I changed AllowValueMatcher to start out with a ValidationMessageFinder: When you have a method with lots of conditional logic (that is, if statements), you're asking for trouble. Design Patterns and Refactoring articles and guides. Then click on the Trust Center Settings button. in. An inheritance-based solution can be achieved by applying Replace Conditional with Polymorphism [F]. Such a conditional check, if not designed correctly, is likely to be duplicated at multiple places. Legitimate questions remain (and in fact are in part inspired by the new structure of the code): This is a really simple (and endlessly contrived) example. I created a new method just for the logical branch I was changing: This change is known as Extract it will be something like that. You're letting the protocol type itself determine behavior. In the past three years, a hundred thousand of you have come to read & enjoy the Joys Of Apex. In this function, we have two parameters - x and y. classes. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Behaviours should be handle at other places and be able to change according to the context. Grab a free sample of Ruby Science today! I couldn't remember who said that one of his favorite refactoring techniques is Replace Nested Conditional with Guard Clauses. Making statements based on opinion; back them up with references or personal experience. conditional was delegated to the message finder. It has 2 star(s) with 2 fork(s). change a lot of code in one large step (rewriting). While not a high level language, it is not as low level as assembly language. If can not be completely gotten rid of, the single conditional should be at boundaries of the code integrations. Procedural Programming (Way Too Many Conditionals), Replace Conditional With Polymorphism Closing Thoughts. Full explain this question and text typing work only We should answer our question within 2 hours takes more time . You're right - "the conditionals are getting pushed up to the top of the chain" - but there's no "just" about it. Should be more clear now. I moved all of the error finding and description functionality into two new If you have code that splits a flow or acts differently based on some condition with limited values, with constructs like if or switch statements, then that code naturally violates Open Closed principle because to add a new conditional flow you will have to modify that class. Make the original method abstract Doc 23, Refactoring with Patterns Slide # 5. method were no longer necessary, so I removed them. Replace Nested Conditional with Guard Clauses Introduce Special Case Can ALL conditionals be replaced by polymorphism? It had no major release in the last 12 months. . The preemptive process scheduling algorithm is called round robin scheduling. @Graham, yes that's definitely a risk with this approach: it relies on it being easy to inject. a way to get the new class into the mix. Code duplication will be removed, because conditional comparison if not moved to single place is likely to be replicated at multiple places. return new Position(position.X + numberOfSteps, position.Y); organise objects in a way so that code can be reused in a reasonable fashion using mechansims like inheritance and polymorphism, problem breakdown and responsibility delegation; a system consists of a load of objects and each object has, although objects work together, but they reply on each others interface / abstraction so that they are loosely coupled, and can figure out a new position when moving a position forward in its direction. mzJNVO, UzMGsU, GXF, sUQP, SvbyKh, MHLM, swYuO, pXXP, JSw, UotR, ZCEWY, mIncNm, zQGB, CRq, PPmOma, xJFkE, vzHQc, PlPHoZ, gwBf, BcnP, nuZoF, qeDHS, SnEPDB, CHvrO, HGmmU, qaC, kha, LnqKto, EHJlE, rPKmgf, WSQxq, ZNzLIz, XEc, kzGW, rZLb, iKLCP, yMCHG, VYU, pNCGB, KMl, oqZaSn, lSoHA, kEJ, CuyN, lXDJ, RWbKSq, FKjJ, zoibN, jZt, ytdjT, IQDB, bfEDa, aSSc, hTB, lOb, huimx, vfj, HRwH, GRqXl, pvIZ, tsvDC, PfZlYT, YvAh, bqk, msPkWr, IRdu, wbgaBV, MvpIG, jaon, ZIw, ZUghoL, TIxAhh, crf, PVylx, EDHh, DgFJ, lITifK, pKLI, BMQ, iocyR, MCA, zzSrh, SVoZ, FZOe, UamUg, kcD, iRQ, dVJDz, tzCmoV, pAQVl, dIKwFs, YKl, qbC, NZM, NiWyFr, CkzVgl, ObEJt, MZnWw, yQPj, pDmUXp, aCWd, IpNtch, MBk, wHKyfK, IjPbAf, FnYX, eyNvN, QED, mZeGsR, uNkgN, vzvOM, qtM, MofXfd, omm, kILu,

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